Knowledge (XXG)

Fairey Ultra-light Helicopter

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549: 537: 561: 424: 28: 494:, the Navy appeared to lack enthusiasm for the Ultra-light and it became clear that the Ministry would not be providing any further funding for its development. Recognising that the prospects for a military order from the British services to have become very limited, the company decided to re-orientate the Ultra-light to conform with the preferences and needs of civil operators instead. 376:-mounted rotor pylon at the centre of the upper surface; a tip-driven twin-blade teetering rotor unit was set upon the rotor pylon. The rotor diameter was 28 feet 3.5 inches (8.623 m), while the overall weight of the Ultra-light was only 1,800 lb (820 kg). Fuel was housed within a single 365:); this arrangement eliminated the necessity for a tail rotor in order to counteract torque, which was not a factor with the tip jet configuration adopted. The Palouste engine was by far the most costly element of the Ultra-light, reportedly comprising in excess of 50 per cent of the craft's purchase cost. 459:
control. The second prototype had a modified cabin which allowed for stretcher-borne casualties to be carried. A pair of Ultra-lights were equipped with a slightly larger diameter rotor (32 ft/9.75 m rather than 28 ft/8.6 m) for the purpose of improving performance in situations
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Further requirements for the prospective light helicopter included a flight endurance of one hour along with the potential for carrying light cargoes such as fuel and tools, as well as stretcher-bound wounded troops. An initial request for a rear-facing observer's seat was present early on, but was
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Despite considerable interest from abroad, particularly from customers in the US and Canada, no orders for the type were received and only the six development Ultra-lights were constructed before the programme was ultimately abandoned in 1959. A major factor in Fairey deciding to terminate work on
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and engine issues. According to Wood, the rival Skeeter had made a good early impression in Germany and had attracted the offer of a military order for the type from the German government, but that this was on the condition that the Skeeter was in turn adopted by the British armed forces as well.
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duties. This specification was considered to be quite demanding, calling for it to be capable of high speeds and rates of climb even under tropical conditions. The rotorcraft was also required to be transportable on the back of a standard Army three-ton truck, constricting the dimensions of the
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In response to the detailed design submission that Fairey had produced for their proposal, the Ministry decided to award the firm a contract to produce a total of four development aircraft for demonstration and flight testing purposes; the company later decided to construct a further two more
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to the tip jets. According to aviation author Derek Wood: "the Fairy Ultra Light was a masterpiece of simplicity. It dispensed with a tail rotor since the tip-driven main rotor was torqueless and it eliminated the shafts, gears, and clutches associated with piston-engined designs".
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Having become aware that the British Army was no longer likely to order the Ultra-light, Fairey instead promoted the type for its potential use within the Royal Navy. While some trials were conducted, including one prototype being successfully tested for suitability on board an
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The second prototype of the Ultra-light, which featured a modified nose so that it could accommodate a stretcher for its intended use as a casualty evacuation helicopter. In 1977, it was rediscovered in a derelict condition on a farm near
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that year. During the Farnborough demonstration, the Ultra-light performed a demonstration of its ability to operate from the back of a three-ton truck, one of the high-profile requirements that had been issued by the British Army.
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high pressure air from the engine directly to the tips; Fairey had been conducting work into a scheme where this air was mixed with fuel at the tips and burned. Such methods had already been flight tested on the
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The Ultra-light found itself a casualty of the British defence economies of the later 1950s, as well as of intense competition from rival firms who had their own light rotorcraft projects, in particular the
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The Ultra-light had been conceived of as a straightforward, low cost and easily transportable helicopter. It lacked any tail rotor due to the decision to propel the rotorcraft using unconventional
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After its completion, several modifications were made to the first prototype. This machine originally had only the rudder at the end of the boom, but a horizontal tailplane bearing end-plate
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Fairey proceeded to develop a dedicated model of the Ultra-light for the civil market, specifically designed to be capable of conducting functions such as communications activities and
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There were many demonstrations of the Ultra-light's capabilities performed at airshows, during military exercises and at sea, including a deployment aboard the
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were beginning to appeal both to helicopter designers and to prospective operators, the British Army made the use of such an engine one of its requirements.
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the programme, aside from the lack of orders, was the limited resources available to the company, and the increasing levels of work on the then-promising
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for aerial observation purposes. Early trials with prototypes proved promising, however political factors ultimately undermined the project.
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to concentrate on the Skeeter, effectively abandoning the Ministry requirement that the Ultra-light was being developed towards meeting.
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skids directly attached to the box structure, porter bars could be attached to the skids to allow the rotorcraft to be carried by hand.
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at Thurleigh, Bedford and by the Royal Navy, before being retired. After periods of lengthy storage it was given for exhibition at the
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where compactness was not at a premium. It had been recognised that there was a need for the rotor blades to have a longer lifespan.
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for such use, no orders were ultimately received. The firm shelved the project, choosing to concentrate on the larger
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A diverse range of entries were submitted in response to the issuing of the requirement; amongst these were
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as well as the consequential requirement to incorporate a complicated and vulnerable torque-compensating
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for a low-cost two-seat helicopter, which would be suitable for reconnaissance, casualty evacuation and
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The Fairey Ultra-light Helicopter emerged as a compact side-by-side two-seater, powered by a single
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Fairey Ultra-light Helicopter, preserved and on display at the Midland Air Museum, September 2011
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in the observation and aerial observation roles. In 1953 a requirement was issued by the British
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was achieved for the Ultra-light, effectively clearing the type for use by civilian operators.
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engine, for which arrangements had already been independently reached with British firm
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Collection of test reports on the Ultra-light Helicopter kept at the National Archives
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A suitable powerplant for a compact rotorcraft had been identified in the form of the
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There was also an interest in producing rotorcraft that made use of tip-driven
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The preserved sixth Fairey Ultra-light Helicopter, on static display at the
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On 14 August 1955, the first prototype Ultra-light helicopter conducted its
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that also made use of tip jets and some of features of the Ultra-light.
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projected beneath the boom into the jet efflux and provided effective
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discarded in later revisions. At this time, newly developed
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was later added. A less obvious change was the addition of
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requirement for a lightweight helicopter to be used by the
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that would be produced by rotors driven by a conventional
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was strongly interested in the potential use of compact
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and addressing that rotorcraft's shortcomings, such as
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The alloy box structure was attached to and carried a
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950 ft/min (4.8 m/s) vertical at sea level
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Aircraft of comparable role, configuration, and era
1025:. London: Sampson Low, Marston & Company, Ltd. 688:180 mi (290 km, 160 nmi) (tropical) 435:. It made an public appearance at the September 596:located at Baginton, to the south of the city. 368:The Ultra-light was constructed around a light 1426: 1115: 8: 387:tail boom on which the engine, a horizontal 345:engine, which was produced under licence by 169:instead, which shared some design features. 407:even when the aircraft was stationary. The 251:with its Ultra-light Helicopter harnessing 1433: 1419: 1411: 1122: 1108: 1100: 923: 921: 919: 917: 915: 913: 900: 898: 896: 894: 892: 890: 800: 798: 796: 214:, which had the advantage of avoiding the 226:. Some contemporary designs, such as the 1003: 437:Society of British Aircraft Constructors 353:for the purpose of providing air to the 2192:1950s British military utility aircraft 1023:Jane's All the World's Aircraft 1958–59 792: 682:98 mph (158 km/h, 85 kn) 659:Blackburn-Turbomeca BnPe.2 Palouste 500 612:Jane's All the World's Aircraft 1958-59 991: 845: 841: 839: 837: 835: 833: 17: 964: 945:The Helicopter Museum: The Collection 831: 829: 827: 825: 823: 821: 819: 817: 815: 813: 667:28 ft 3.5 in (8.623 m) 580:The sixth prototype to be completed, 427:On a lorry at the 1957 Paris Air Show 35:The Ultra-light Helicopter in flight 7: 927: 904: 881: 869: 857: 804: 1072:. Macdonald and Jane's Publishers. 544:of Weston-super-Mare, U.K., in 2020 1751:de Havilland Canada DHC-1 Chipmunk 1444:manufactured in Britain since the 639:14 ft 1 in (4.29 m) 199:prospective vehicle considerably. 14: 645:8 ft 2 in (2.49 m) 633:640 lb (290 kg) payload 330:rotorcraft as a private venture. 1907:Rolls-Royce Thrust Measuring Rig 1034:. Manchester: Crecy Publishing. 1032:Wrecks & Relics 23rd Edition 573:and was promptly transferred to 482:Thus, the decision was taken in 26: 2035:Scottish Aviation Twin Pioneer 259:with a smaller version of the 141:positioned at the ends of the 1: 1862:Fairey Ultra-light Helicopter 1053:. London: Putnam Publishing. 982:, Retrieved: 5 February 2017. 701:2 hours 30 minutes (tropical) 411:was a simple pair of tubular 118:was a small British military 116:Fairey Ultra-light Helicopter 2207:Aircraft first flown in 1955 695:4,800 ft (1,500 m) 586:Royal Aircraft Establishment 182:During the early 1950s, the 1766:British Aerospace Jetstream 651:1,800 lb (816 kg) 511:airworthiness certification 399:surfaces were mounted. The 2228: 2202:Tipjet-powered helicopters 1990:Armstrong Whitworth Argosy 1807:Armstrong Whitworth A.W.52 1686: / anti-submarine 1477:English Electric Lightning 1051:Fairey Aircraft since 1915 1021:Bridgman, Leonard (1958). 608:Fairey Aircraft since 1915 2197:1950s British helicopters 2030:Scottish Aviation Pioneer 1972:Youngman-Baynes High Lift 1664:English Electric Canberra 661:gas turbine gas generator 265:Bristol Aeroplane Company 243:Competition and selection 34: 25: 20: 1536:de Havilland Sea Vampire 507:Paris Le Bourget Airport 122:intended to be used for 2020:Hawker Siddeley Andover 1618:Hawker Siddeley Harrier 1531:de Havilland Sea Hornet 860:, pp. 111–112, 114 618:General characteristics 132:Fairey Aviation Company 65:Fairey Aviation Company 21:Ultra-light Helicopter 1892:Hawker Siddeley P.1127 1761:Handley Page Jetstream 1708:Hawker Siddeley Nimrod 1546:de Havilland Sea Vixen 1541:de Havilland Sea Venom 1346:Ultra-light Helicopter 565: 557: 545: 540:A restored example at 428: 313:to produce the engine 2068:AgustaWestland Merlin 2063:AgustaWestland Apache 2015:Handley Page Hastings 1380:Avions Fairey Belfair 1049:Taylor, H.O. (1974). 575:The Helicopter Museum 563: 551: 542:The Helicopter Museum 539: 509:. During 1958, civil 426: 378:crash-proof fuel tank 291:-powered proposal by 43:Light Army helicopter 2212:Triple-tail aircraft 2156:Slingsby Grasshopper 1746:Boulton Paul Balliol 1566:Supermarine Scimitar 1561:Supermarine Attacker 1467:de Havilland Vampire 1375:Avions Fairey Junior 1221:Long-range Monoplane 1068:Wood, Derek (1975). 941:"Fairey Ultra-Light" 744:SNCASO SO.1221 Djinn 723:Saunders-Roe Skeeter 665:Main rotor diameter: 584:, was tested by the 475:Saunders-Roe Skeeter 380:set within the box. 372:box that placed the 283:proposed the larger 261:Saunders-Roe Skeeter 159:Saunders-Roe Skeeter 1967:Supermarine Seagull 1917:Saunders-Roe SR.A/1 1877:Handley Page HP.115 1827:Blackburn Firecrest 1669:Handley Page Victor 1623:Panavia Tornado IDS 1608:Eurofighter Typhoon 1598:Blackburn Buccaneer 1502:Panavia Tornado ADV 1482:Eurofighter Typhoon 1462:de Havilland Hornet 1306:Firefly (monoplane) 1139:Chronological order 1030:Ellis, Ken (2012). 977:"Aircraft Listing." 725:(direct competitor) 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1401: 1398: 1396: 1393: 1391: 1388: 1386: 1383: 1381: 1378: 1376: 1373: 1372: 1370: 1367: 1366:Avions Fairey 1363: 1357: 1354: 1352: 1349: 1347: 1344: 1342: 1339: 1337: 1334: 1332: 1329: 1327: 1324: 1322: 1319: 1317: 1314: 1312: 1309: 1307: 1304: 1302: 1299: 1297: 1294: 1292: 1289: 1287: 1284: 1282: 1279: 1277: 1274: 1272: 1269: 1267: 1264: 1262: 1259: 1257: 1254: 1252: 1249: 1247: 1244: 1242: 1239: 1237: 1234: 1232: 1229: 1227: 1224: 1222: 1219: 1217: 1214: 1212: 1209: 1207: 1204: 1202: 1199: 1197: 1194: 1192: 1189: 1187: 1184: 1182: 1179: 1177: 1174: 1172: 1169: 1167: 1164: 1162: 1159: 1157: 1154: 1152: 1149: 1147: 1144: 1143: 1141: 1137: 1132: 1125: 1120: 1118: 1113: 1111: 1106: 1105: 1102: 1096: 1093: 1092: 1088: 1081: 1079:0-356-08109-5 1075: 1071: 1066: 1062: 1060:0-370-00065-X 1056: 1052: 1047: 1043: 1037: 1033: 1028: 1024: 1019: 1018: 1013: 1005: 1004:Bridgman 1958 1000: 997: 994:, p. 404 993: 988: 985: 981: 978: 973: 970: 967:, p. 257 966: 961: 958: 946: 942: 936: 933: 930:, p. 115 929: 924: 922: 920: 918: 916: 914: 910: 907:, p. 114 906: 901: 899: 897: 895: 893: 891: 887: 883: 878: 875: 871: 866: 863: 859: 854: 851: 847: 842: 840: 838: 836: 834: 832: 830: 828: 826: 824: 822: 820: 818: 816: 814: 810: 807:, p. 111 806: 801: 799: 797: 793: 786: 781: 777: 774: 773: 772: 771: 770:Related lists 765: 762: 760: 757: 755: 752: 750: 747: 745: 742: 740: 739:Kawasaki KH-4 737: 735: 732: 730: 727: 724: 721: 720: 719: 718: 711: 706: 703: 700: 697: 694: 691: 687: 684: 681: 680:Cruise speed: 678: 677: 676: 674: 666: 663: 660: 656: 653: 650: 649:Gross weight: 647: 644: 641: 638: 635: 632: 629: 626: 623: 622: 621: 619: 614: 613: 609: 606: 599: 597: 595: 591: 587: 583: 578: 576: 572: 562: 555: 550: 543: 538: 531: 529: 526: 524: 520: 514: 512: 508: 504: 500: 499:crop spraying 495: 493: 487: 485: 480: 476: 472: 471: 466: 461: 458: 454: 453:hydraulically 450: 445: 442: 438: 434: 433:maiden flight 425: 418: 416: 414: 410: 409:undercarriage 406: 402: 398: 394: 390: 386: 381: 379: 375: 371: 366: 364: 360: 356: 352: 348: 344: 341: 333: 331: 327: 324: 320: 316: 315:under licence 312: 308: 305: 300: 298: 294: 290: 286: 282: 278: 274: 270: 266: 262: 258: 254: 250: 242: 240: 238: 233: 229: 225: 221: 217: 213: 208: 206: 200: 197: 193: 189: 185: 177: 172: 170: 168: 164: 160: 154: 152: 148: 144: 140: 135: 133: 129: 125: 121: 117: 107: 102: 101: 97: 94: 93: 89: 86: 85: 81: 78: 77: 73: 71:First flight 70: 69: 66: 63: 61:Manufacturer 60: 59: 55: 50: 49: 42: 39: 38: 33: 29: 24: 19: 16: 2083:Saro Skeeter 2000:Auster AOP.9 1995:Auster AOP.6 1927:Short Seamew 1861: 1799:experimental 1782:Short Tucano 1756:Folland Gnat 1654:Avro Lincoln 1578: / 1390:Tipsy Nipper 1345: 1336:Jet Gyrodyne 1069: 1050: 1031: 1022: 1014:Bibliography 999: 987: 979: 972: 960: 948:. Retrieved 944: 935: 877: 865: 853: 769: 768: 754:Agusta A.105 716: 715: 704: 698: 692: 685: 679: 672: 670: 664: 654: 648: 642: 636: 630: 624: 617: 615: 611: 607: 604: 603: 581: 579: 567: 527: 515: 496: 488: 469: 462: 457:cyclic pitch 446: 430: 382: 367: 337: 328: 323:rotor blades 301: 297:Raoul Hafner 275:proposal by 273:ducted rotor 268: 267:'s proposed 257:Saunders-Roe 255:propulsion, 246: 220:transmission 209: 205:gas turbines 201: 184:British Army 181: 155: 151:British Army 143:rotor blades 136: 115: 113: 104:Number built 15: 2055:Helicopters 1897:Heston JC.6 1842:Bristol 188 1778:/Sea Prince 1731:Avro Athena 1659:Avro Vulcan 1226:Firefly IIM 1166:Hamble Baby 992:Taylor 1974 846:Taylor 1974 759:Kamov Ka-15 673:Performance 655:Powerplant: 441:Farnborough 405:yaw control 355:tip-burners 188:helicopters 173:Development 2181:Categories 1942:Short SC.1 1937:Short SB.5 1932:Short SB.3 1912:Saro P.531 1726:Avro Anson 1356:Gannet AEW 1186:Flycatcher 965:Ellis 2012 782:References 699:Endurance: 455:-assisted 385:box girder 351:compressor 285:Short SB.8 224:tail rotor 120:helicopter 1982:Transport 1817:BAC TSR-2 1400:Tipsy S.2 1311:Spearfish 1301:Barracuda 1266:Swordfish 1231:Fleetwing 1216:Firefly I 1211:Kangourou 1196:Fremantle 950:8 October 928:Wood 1975 905:Wood 1975 882:Wood 1975 870:Wood 1975 858:Wood 1975 805:Wood 1975 787:Citations 631:Capacity: 605:Data from 484:Whitehall 470:Grenville 468:HMS  389:tailplane 347:Blackburn 319:Turbomeca 311:Blackburn 2146:EoN Eton 1812:Avro 707 1741:BAE Hawk 1718:Trainers 1519:fighters 1454:Fighters 1368:aircraft 1351:Rotodyne 1316:Gyrodyne 1291:Albacore 1171:Campania 1133:aircraft 712:See also 556:in 2015. 343:turbojet 307:turbojet 293:Austrian 287:, and a 196:training 139:tip jets 90:Retired 79:Retired 2138:Gliders 1822:BAe EAP 1646:Bombers 1635:(naval) 1395:Tipsy M 1385:Tipsy B 1341:Delta 2 1331:Delta 1 1271:Fantôme 1181:Pintail 734:Bell 47 643:Height: 637:Length: 289:ram jet 253:Tip jet 178:Origins 87:Status 1576:Strike 1326:Gannet 1321:Primer 1296:Fulmar 1286:P.4/34 1281:Seafox 1276:Battle 1261:G.4/31 1251:S.9/30 1241:Gordon 1236:Hendon 1201:Ferret 1131:Fairey 1076:  1057:  1038:  686:Range: 582:G-APJJ 571:Harlow 401:rudder 397:rudder 374:rubber 357:at 40 334:Design 263:, the 216:torque 212:rotors 1517:Naval 1256:TSR.1 625:Crew: 413:steel 370:alloy 361:(275 317:from 82:1959 40:Role 1246:Seal 1191:Fawn 1161:N.10 1074:ISBN 1055:ISBN 1036:ISBN 952:2021 657:1 × 449:fins 395:and 391:and 271:, a 232:bled 126:and 114:The 1206:Fox 1176:III 1156:N.9 1151:N.4 1146:F.2 592:at 505:at 363:kPa 359:psi 269:190 2183:: 943:. 912:^ 889:^ 812:^ 795:^ 610:, 299:. 279:, 230:, 134:. 108:6 1434:e 1427:t 1420:v 1123:e 1116:t 1109:v 1082:. 1063:. 1044:. 954:. 627:2

Index


Fairey Aviation Company
helicopter
reconnaissance
casualty evacuation
Fairey Aviation Company
tip jets
rotor blades
Ministry of Supply
British Army
Saunders-Roe Skeeter
type certification
Fairey Rotodyne
British Army
helicopters
Ministry of Supply
training
gas turbines
rotors
torque
transmission
tail rotor
Sud-Ouest Djinn
bled
Fairey Jet Gyrodyne
Fairey Aviation
Tip jet
Saunders-Roe
Saunders-Roe Skeeter
Bristol Aeroplane Company

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